.swiper-container {
  width: 100%;
}
.swiper-container img {
  width: 100% !important;
}
.swiper-container .swiper-pagination-bullet-active {
  background-color: #fff;
}
.swiper-container .swiper-pagination-bullet {
  width: 18px;
  height: 18px;
  margin-right: 15px !important;
}
.brand-intro {
  margin-top: 50px;
}
.brand-intro .intro-top {
  margin-bottom: 50px;
  text-align: center;
}
.brand-intro .intro-top h4 {
  font-size: 32px;
  margin-bottom: 20px;
}
.brand-intro .intro-top div {
  font-size: 24px;
}
.brand-intro .intro-main {
  height: 300px;
  display: flex;
  justify-content: space-around;
}
.brand-intro .intro-main .main-left {
  height: 100%;
  padding-left: 0;
  width: 550px;
  height: 300px;
}
.brand-intro .intro-main .main-left img {
  width: 500px;
  height: 100%;
}
.brand-intro .intro-main .main-right {
  height: 100%;
  display: flex;
  flex-direction: column;
  padding-left: 5%;
  justify-content: space-around;
}
.brand-intro .intro-main .main-right h4 {
  font-size: 24px;
}
.brand-intro .intro-main .main-right p {
  overflow: hidden;
  font-size: 20px;
  line-height: 32px;
  text-indent: 2em;
}
.brand-development {
  margin-top: 100px;
}
.brand-development .development-top {
  text-align: center;
  margin-bottom: 40px;
}
.brand-development .development-top h4 {
  margin-bottom: 20px;
  font-size: 32px;
}
.brand-development .development-top div {
  font-size: 24px;
}
.brand-development .develoment-main img {
  width: 100%;
}
.brand-development .develoment-main img:nth-child(1) {
  margin-bottom: 85px;
}
.product {
  width: 100%;
  max-width: 1200px;
  margin: 0 auto;
  color: #1a1a1a;
}
.product .pro-text div {
  width: 100%;
  text-align: center;
  font-size: 24px;
  margin-bottom: 50px;
}
.product .pro-text h4 {
  margin-top: 80px;
  margin-bottom: 20px;
  width: 100%;
  text-align: center;
  font-size: 32px;
}
.product .pro-main {
  color: #fff;
  display: flex;
  justify-content: space-between;
  background-color: #fff;
  align-items: center;
}
.product .pro-main .item {
  height: 480px;
  flex: 0.32;
  position: relative;
  overflow: hidden;
}
.product .pro-main .item img {
  width: 100%;
  height: 100%;
}
.product .pro-main .item .cloak,
.product .pro-main .item .cloak-center {
  position: absolute;
  bottom: -210px;
  left: 0;
  background-color: #434343;
  z-index: 9;
  transition: transform 0.3s linear;
}
.product .pro-main .item .cloak div,
.product .pro-main .item .cloak-center div {
  width: 100%;
  height: 80px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  font-size: 24px;
}
.product .pro-main .item .cloak p,
.product .pro-main .item .cloak-center p {
  padding: 0 30px 30px 50px;
  display: flex;
  justify-content: space-around;
  align-items: center;
  font-size: 18px;
  line-height: 25px;
}
.product .pro-main .item .cloak-center {
  bottom: 480px;
}
.product .pro-main .item:hover .cloak {
  transform: translateY(-100%);
}
.product .pro-main .item:hover .cloak-center {
  transform: translateY(100%);
}
.product-advantages {
  margin-top: 100px;
}
.product-advantages .advantages-top {
  margin-top: 50px;
  margin-bottom: 50px;
  text-align: center;
}
.product-advantages .advantages-top h4 {
  font-size: 32px;
  margin-bottom: 18px;
}
.product-advantages .advantages-top div {
  font-size: 24px;
}
.product-advantages .advantage-main {
  max-height: 863px;
  background-color: #434343;
}
.product-advantages .advantage-main .pc-advantages-main {
  margin: 0 auto;
  max-width: 1200px;
}
.product-advantages .advantage-main .pc-advantages-main img {
  width: 100%;
  margin: 0 auto;
}
@media screen and (max-width: 768px) {
  .brand-intro {
    width: 100%;
    padding: 0 8px;
    margin-top: 5%;
  }
  .brand-intro .intro-top {
    margin-bottom: 15px;
  }
  .brand-intro .intro-top h4 {
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 10px;
  }
  .brand-intro .intro-top div {
    font-size: 12px;
  }
  .brand-intro .intro-main {
    width: 100%;
    margin-top: 24%;
    display: flex;
    flex-direction: column-reverse;
    justify-content: space-around;
  }
  .brand-intro .intro-main .main-left {
    width: 100%;
  }
  .brand-intro .intro-main .main-left img {
    width: 100%;
  }
  .brand-intro .intro-main .main-right {
    padding-left: 0;
    width: 100%;
  }
  .brand-intro .intro-main .main-right h4 {
    text-align: center;
    font-size: 12px;
    margin-bottom: 10px;
  }
  .brand-intro .intro-main .main-right p {
    font-size: 12px;
    line-height: 20px;
    padding: 0 10px;
    margin-bottom: 10px;
  }
  .brand-development {
    width: 100%;
  }
  .brand-development .development-top {
    margin-bottom: 6%;
  }
  .brand-development .development-top h4 {
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 10px;
  }
  .brand-development .development-top div {
    font-size: 12px;
  }
  .brand-development .develoment-main {
    padding: 0 8px;
    width: 100%;
  }
  .brand-development .develoment-main img {
    width: 100%;
  }
  .brand-development .develoment-main img:nth-child(1) {
    margin-bottom: 8%;
  }
  .brand-development .develoment-main .main-p {
    width: 100%;
    background-color: #707070;
    position: relative;
    font-size: 12px;
    line-height: 18px;
    color: #fff;
    text-indent: 2em;
    padding: 4% 4%;
  }
  .brand-development .develoment-main .main-p::after {
    position: absolute;
    left: 50%;
    top: -10px;
    content: "";
    width: 0;
    height: 0;
    border-left: 18px solid transparent;
    border-right: 18px solid transparent;
    border-bottom: 18px solid #707070;
    transform: translateX(-50%);
  }
  .brand-development .develoment-main .main-p::before {
    position: absolute;
    right: 0;
    top: -10px;
    content: "";
    width: 0;
    height: 0;
    border-left: 18px solid transparent;
    border-right: 18px solid transparent;
    border-bottom: 18px solid #707070;
    transform: translateX(-50%);
  }
  .brand-development .develoment-main .main-p .main-img {
    position: relative;
    float: left;
    width: 120px;
    height: 105px;
    margin-bottom: 0;
  }
  .brand-development .develoment-main .main-p .main-img img {
    position: absolute;
    left: -5%;
    top: -25%;
  }
  .product {
    width: 100%;
    padding: 0 8px;
    margin-top: 8%;
    margin-bottom: 30px;
  }
  .product .pro-text {
    margin-bottom: 8%;
  }
  .product .pro-text h4 {
    text-align: center;
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 8px;
  }
  .product .pro-text div {
    font-size: 12px;
    margin-bottom: 16px;
  }
  .product .mb-pro-main {
    width: 100%;
  }
  .product .mb-pro-main .item {
    display: flex;
    justify-content: space-between;
    margin-bottom: 10%;
  }
  .product .mb-pro-main .item:nth-child(3) {
    margin-bottom: 0;
  }
  .product .mb-pro-main .item a img {
    width: 127px;
    height: 154px;
  }
  .product .mb-pro-main .item .cloak,
  .product .mb-pro-main .item .cloak-center {
    padding: 0  0 0 20px;
    padding-top: 20px;
  }
  .product .mb-pro-main .item .cloak div,
  .product .mb-pro-main .item .cloak-center div {
    font-weight: 700;
    font-size: 14px;
    text-align: center;
    color: #000;
    margin-bottom: 4%;
  }
  .product .mb-pro-main .item .cloak p,
  .product .mb-pro-main .item .cloak-center p {
    font-size: 12px;
    line-height: 17px;
    text-indent: 2em;
  }
  .product .mb-pro-main .item .cloak-center {
    padding: 0 20px 0  0;
    padding-top: 20px;
  }
  .product-advantages {
    width: 100%;
    margin-top: -8%;
  }
  .product-advantages .advantages-top {
    margin-bottom: 8%;
  }
  .product-advantages .advantages-top h4 {
    text-align: center;
    font-size: 14px;
    margin-top: 14px;
    margin-bottom: 8px;
  }
  .product-advantages .advantages-top div {
    font-size: 12px;
    margin-bottom: 16px;
  }
  .product-advantages .advantage-main {
    width: 100%;
    padding: 0 8px;
    padding-bottom: 10px;
  }
  .product-advantages .advantage-main .mb-advantage img {
    width: 100%;
  }
  .product-advantages .advantage-main .mb-advantage ul {
    width: 100%;
  }
  .product-advantages .advantage-main .mb-advantage ul li {
    margin-top: 2%;
    font-size: 12px;
    line-height: 16px;
    color: #fff;
  }
  .product-advantages .advantage-main .pc-advantages-main {
    display: none;
  }
}
